im new here sorry if this has already been a topic, but my 71 has the original engine mounts on the frame but and cant seem to find engine side mounts on any web sites! please help out!!

 

First off welcome! If it has frame mounts, then any auto parts store should have the side motor mounts in stock. Unless you live in the Siberian wilderness. They are pretty commonly found at NAPA< Schucks/O'Reilly, Autozone, etc.
Here's a pair at Summit Racing polyurethane:
http://www.summitracing.com/parts/ENS-3-1117G/
http://www.summitracing.com/parts/PTP-7-504-BL/
Steel:
http://www.summitracing.com/parts/MOR-62510/
Rubber:
http://www.summitracing.com/parts/LAK-24084/